GrabCAD 模型信息
Precision Ground Block 25×50×75 mm · 模型 39479
This 3D model represents a Precision Ground Tooling Block, also known as a 1-2-3 Block in its metric version (25 × 50 × 75 mm). It serves as a fundamental tool in machine shops, inspection setups, and mechanical fixturing, ideal for operations that require high perpendicularity, parallelism, and repeatable accuracy in workpiece alignment and instrument calibration. TECHNICAL SPECIFICATIONS - Nominal Dimensions: 25 × 50 × 75 mm - Hole Pattern (Standard Layout): 23 total holes (8 threaded + 7 through holes on the 50×75 mm face; 8 remaining holes on other faces) - Manufacturing: All six faces are precision ground for dimensional accuracy and flatness - Geometric Tolerance: Parallelism and perpendicularity ≤ 0.005 mm (typical of high-accuracy tooling blocks) - Material: Hardened tool steel (approx. hardness HRC 62) APPLICATIONS - Precision setup on CNC milling machines and surface plates - Creation of alignment references and workholding jigs - Fixture and inspection design - Educational and training use in metrology and machining FILE INFORMATION - Format: STEP (.stp) / IGES (.igs) / Fusion 360 (.f3d) - Units: Millimeters (mm) NOTE ON STANDARDS Although similar in concept to DIN 861 and JIS B 7516 gauge blocks, this component is classified as a tooling aid, not a certified metrological reference. Its ≤ 0.005 mm flatness and squareness values represent typical manufacturer-grade tolerances for precision tooling blocks.
- 格式
- STEP / IGES、Rendering、Fusion 360
- 分类
- Components、Industrial design、Tools
- 标签
- cnc setup、metrology、din 861、gauge block、precision block
- 数据更新
- 2026-10-05T11:41:24Z
